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Stock Problems/IssuesDiscussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.
I have the infamous trifectia. I have replaced all four speed sensors, and they won't go out..
Next steps?
I have also noticed that when applying the brakes that I will get a short pulse of the abs system. Happens once each time I brake. If I let off, then get back on, it will happen again. Is this a normal symptom of the trifecta?
Last edited by quickquest88; Mar 12, 2016 at 06:02 PM.
You need to get a good scan tool and see which corner is bad or has a bad contact. This tool will find out which side, then you can diagnosis it better.
You might have a bad plug socket at the connection and you need to know what corner. Rare the abs module needs replaced most of the time its the sensor on one corner , or the sensor installed cracked in the carrier.
Just as the trifecta appeared once (mine is intermittent) my ABS did have a hissy-fit which shocked me. It hasn't happened since. I can't say I've heard of it triggering the ABS every time... hopefully others will weigh in.
Interestingly, the scan tool listed above does allow for activation/testing/bleeding of the ABS/DSC/ACS systems (down to the individual valve level) so it may be an advantage when you do get around to finding the problem and getting everything back in order if you end up replacing anything.
